Quick detachable elastic tire.



P. A. PAINCHAUD. y

QUICK DETACHABLE ELASTIC TIRE.

APPLICATION FILED DEC-5| l9I4.

Patented Aug. 1o, 1915.

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PIERRE ANToNIo PAINGHAUD',1 0F -rgtiifssIsvIImit,l QUEBEC, GANADAQAssIGNoR Tov JOHN PARADIS AND :ocTAvn eINeiaAs,v BOTH or QUEBEC, CANADA.

Y QUIcKDnTAcIrABLn'nDAsTIc TIRE. 'i

ToaZZ lolz-0m t may concern: e c

Be it known thatl 1FInRRE ANTONIO BAINeiIAnDya subject `of the King'of Great Britain'f-and resident of Plessisvilldin the Province of Quebec, Canada,` have invented certain new and useful 'Improvements 'in Quick-Detachable Elastic Tires;- and I do hereby declare thatthe following is a full, clear,v and exact description of the-same.`

Y The invention is a quick detachable elastic' tire andL they object of the` inventionl is to provide an elastic tire that may bemade in Astandard sizes to be mounted onfelliesof ordina-ry wheels.- r

` A lfurther object of the inventionr is, to

provide a tire of this character with a'mini? mum depth consistent with the lrequisite strength andi springiness, in order that the resulting Wheel shall havekjust about the same appearance as an ordinary 'pneumatic tired Wheel.

A still further object is toesim'plifyand thus cheapen the cost ofthe tire.

A The invention consists of a pair ot opposing; U-sectioned metal bands forming inner and' outer rims concentricallyA arranged and betweenvvvhich the springs to give the neces-` sary resilience,` are arranged In a particular manner. The inner rim or band is maderof such a size that it willlnicely fit the felly of` a standard size wheel and issecured thereon by anyl suitable means. ll`he outer l band preferably Carries a rrubber treadk portionI and side plates to close. in thespace betweeny thev two rims. p The provisionfof the two U- sectioned bands, not only lessens the depth of the tire, but providesadvantageous supports for a plurality of bracketssecured in pairs to the inner and outer rims respectively on opposite sides of the wheel, be-

` tween' which thesprings are stretched s o as `to l-ierin a direction parallel withthe axis of the wheel, these springs engaging hooks on the free ends of the brackets so that they may be easily attached or detached.

The invention will be better` understood with the aid of the accompanying drawings inwhich Figure 1 is a side viewk of a portion of the elastic tire `aceordingtof thepresent invention, partly in elevation and partly with onefof the side plates removed to disclosethe interior of the tire. Fig. 2 is a cross section through the tire and a pair of the springspeurt-genen ofteaei-.s Patent. patented Aug, 10,1915, Appiioatiqnniea December 5,1914.. seriaiNas'rams. supportingbrackets. Y Fig. 3 vis a perspective View off one of the spring-supporting brackv ets and Fig. 4e is a similar. view of another of the supporting brackets. f

vitefering to the drawings, 1' indicates the inner/rim having the outwardly extending side flanges 2 and of such size as to 1nicely fit vthe fellyrof an Vordinary standard size wheel,- said rim beingsecured to the felly (iiotshowi'i)v by any known means,- suc'hi, for instance, as the well known wedges'vwhich would enable the rim to be taken 'off the wheel very quickly.

3 is` the outer rim of .larger diameter,y but preferably .about the samey width and having the inwardly extending continuousA side flanges It will thus be seen that the rims 1 are U-shapedin cross section at lany pointtherearound and consequently are very easily; andv cheaply produced. f It should be mentionedthat the 'flanges 2 and 4 extend toivardfeach other only a suiiicient distance to allow of a fair amount of movement of one rim in'relation' Ato the other in the plane of 'the wheel, andthe space between the two rims is coveredy in by opposite side plates 5 and 6 carried by the outeririmfB and having ranged, in the angles formed by the flanges 4 and the rim 3., intervals therearound and staggered from side to side', that is` to say, each bracket on one side of the rim comes between two brackets onv the4 othersides In Y Fig, 2, one L of such brackets 10'v appears on one sideof therim, but' it will be understood fron`1` the foregoing descriptionV that such brackets arek arranged on A both sides of the rim in alternate` arrangement andwin the angles formed by the flanges 4L.'` These brackets 10 are each formed witha depend'- :ring tongue 11 and a' base portion 12 secured to the rim 3 and flange l by the rivets 13 and that portion ofthe base extending be# tween the rim and flange is preferably ar Each of thetongues 11 is providedwith a pair of holes 14 and 15 engaged by a hook- 16. Y This hook has a threaded shank Vportion 17 extending through the hole 14 andy provided Iwith a tightening nut 18, while the head portion of' the hook is provided with a shoulder 19 and looped around therefrom until its free end 20 engages the hole 16`in the normal position of the wheel lie approximately midway between the rims 1 in lalternate arrangement so that each bracket 21 on one side of the rim comes opposite a one of thev brackets 10 on the other side of midway between the two rims to the rim 3. The brackets 21 arev each secured to the flange 2 andthe rim by rivets 22 and are further strengthened across the angle by the provision of a web or strut 23, and, outward of the ange, each of the said brackets 21 is extended to ia point approximately form a tongue'terminating in the integral hook 24.

wNow, it will be seen that every hook 1G comes horizontally opposite one of the hooks 24 and between each of these pairs of said hooks, a coiled spring 25 is stretched, the looped. ends 26 of said spring engaging the hooks as clearly seen in F ig. 2. rifhus, therey are a series yof springs extending trans* versely ofthe tire at intervals therearound and intermediate between the rims 1 and 3. It will now be seen that the rim 1 is free to move toward or away from the rim 3 at any point against the resistance of the springs 25 which, being moved laterally, stretch, thus giving the necessary resilience .to the wheel.- During the movement of the rim 1 in relation to the rim 3, the plates 5 and 6 move with the rim 3 and slide alongside the flanges'2, which latter assist in guiding the plates in their movement and in forming such rigid support as is required when the wheel skids or slides as a whole laterally. i

. It will be noticed that the hooks 24 are rigid while the hooks 16 are adjustable and this is a feature which greatly helps in the assembling of' the tire, particularly as each spring is slightly stretched in the fixed position. After hooking the spring on the rigid hook, the adjustable hook can be moved in a longitudinal direction to stretch the spring by simply tightening up the nut 17.

Copies of thspatent may be obtained for It should be mentioned that the'hooks' Vquickly applied to the felly oty an ordinary automobile for other wheel, and further that in the tire according to the invention, special attention has been given to the details of construction in order to provide great strength to contend with skidding 'movements of the wheel. Furthermore, with the springs arranged 'parallel with the axis ofthe wheel, it will be noticed that all the springs are stretched to a corresponding extent when relative movement takes place between the inner and outer rimsla'nd during this movement, the hooks 24and`16 accommodate the swinging of the spring in any direction.

lVhat I claim is -Y y In a quick detachable elastic tire, an inner rim having outwardly extending continuous opposite side flanges, an outer rim surrounding and 'of larger diameter Athan the inner rim and having continuous inwardly extending opposite side fianges, a pair of side plates adapted to close the space between said outer and inner rims and having sliding abutment with lthe flanges of saidl inner Vrim,lbolts securing said side plates against theflanges of the outer rim, said side plates extending a little beyond the outer rim, a tread member mounted on the periphery of said outer rim between said side plate extensions, inwardly extending brackets rigidly secured to said outer rim in the angles formedby its flanges, said brack# ets being on both sides of the rim and in alternate arrangement and each having a base extending diagonally across the angle andy terminating in a tongue portionwith a pair of holes therein, a hook having a threaded shank and'engaging one of said holes and having a head portion bent over to engage the other hole, a nut on said shank for clamping the hook to the tongue, outwardly extending brackets rigidly secured to the inner rim in the angles formed by its flanges, and arranged on both sides of the inner rim in alternate arrangement and each terminating -in atongue bent to form an integral hook, and a coil spring stretched between each inner and louter rim bracket and having looped ends engaging the hooks of said brackets. l

Signed at Plessisville, Quebec, Canada, this first day of December, 1914.

PIERRE ANTONIO PAINCHAUD.

ve cents each,l by addressing the Commissioner of Patents.

Washington, D. C." v c y 

